1341321421205 has 4 divisors (see below), whose sum is σ = 1609585705452. Its totient is φ = 1073057136960.

The previous prime is 1341321421199. The next prime is 1341321421267. The reversal of 1341321421205 is 5021241231431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138794247601 + 1202527173604 = 372551^2 + 1096598^2 .

It is not a de Polignac number, because 1341321421205 - 2¹⁴ = 1341321404821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134132142116 + ... + 134132142125.

It is an arithmetic number, because the mean of its divisors is an integer number (402396426363).

Almost surely, 2^{1341321421205} is an apocalyptic number.

It is an amenable number.

1341321421205 is a deficient number, since it is larger than the sum of its proper divisors (268264284247).

1341321421205 is an equidigital number, since it uses as much as digits as its factorization.

1341321421205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268264284246.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 1341321421205 its reverse (5021241231431), we get a palindrome (6362562652636).

The spelling of 1341321421205 in words is "one trillion, three hundred forty-one billion, three hundred twenty-one million, four hundred twenty-one thousand, two hundred five".